381996

素因数分解:

$2^2\times 3^6\times {\mathrm{131}}^1$

素因数の和:153

約数の個数: 42

約数和(自身を含む): 1009932

約数和(自身を除く): 627936

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 131, 162, 243, 262, 324, 393, 486, 524, 729, 786, 972, 1179, 1458, 1572, 2358, 2916, 3537, 4716, 7074, 10611, 14148, 21222, 31833, 42444, 63666, 95499, 127332, 190998, 381996]

約数ペア:

[(1, 381996), (2, 190998), (3, 127332), (4, 95499), (6, 63666), (9, 42444), (12, 31833), (18, 21222), (27, 14148), (36, 10611), (54, 7074), (81, 4716), (108, 3537), (131, 2916), (162, 2358), (243, 1572), (262, 1458), (324, 1179), (393, 972), (486, 786), (524, 729)]